Evidence map›Paper›PMID 19497882›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2009

A primate subfamily of galectins expressed at the maternal-fetal interface that promote immune cell death.

Nandor Gabor Than, Roberto Romero, Morris Goodman, Amy Weckle, Jun Xing, Zhong Dong, Yi Xu, Federica Tarquini, Andras Szilagyi, Peter Gal and 15 more

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 113 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
113citing papers in PubMed, 1 pooled it
4.3field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

113 citing papers in PubMed, 1 synthesis or guideline pooled it, 203 citations in OpenAlex.

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53 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

25 authors at 10 institutions in 4 countries.

Nandor Gabor ThanPerinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services, Detroit, MI 48201, USA.
Roberto Romero
Morris Goodman
Amy Weckle
Jun Xing
Zhong Dong
Yi Xu
Federica Tarquini
Andras Szilagyi
Peter Gal
Zhuocheng Hou
Adi L Tarca
Chong Jai Kim
Jung-Sun Kim
Saied Haidarian
Monica Uddin
Hans Bohn
Kurt Benirschke
Joaquin Santolaya-Forgas
Lawrence I Grossman
Offer Erez
Sonia S Hassan
Peter Zavodszky
Zoltan Papp
Derek E Wildman
National Institutes of Health · USEunice Kennedy Shriver National Institute of Child Health and Human Development · USHungarian Academy of Sciences · HUBehringwerke (Germany) · DEBrigham and Women's Hospital · USInstitute of Cell Biology and Neurobiology · ITInstitute of Molecular Life Sciences · HUSemmelweis University · HUUniversity of California, San Diego · USWayne State University · US

Funding

The Role Of Subclinical Infection And Cytokines In Preterm ParturitionZIAHD002400 · NICHD · EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT · PI ROMERO, ROBERTO · 2009 to 2025
$254.4M
THE ROLE OF SUBCLINICAL INFECTION AND CYTOKINES IN PRETERM PARTURITIONZ01HD002400 · NICHD · EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT · PI ROMERO, ROBERTO · 1992 to 2008
$8.2M
Intramural NIH HHS
6 · The paper itself

Abstract

Galectins are proteins that regulate immune responses through the recognition of cell-surface glycans. We present evidence that 16 human galectin genes are expressed at the maternal-fetal interface and demonstrate that a cluster of 5 galectin genes on human chromosome 19 emerged during primate evolution as a result of duplication and rearrangement of genes and pseudogenes via a birth and death process primarily mediated by transposable long interspersed nuclear elements (LINEs). Genes in the cluster are found only in anthropoids, a group of primate species that differ from their strepsirrhine counterparts by having relatively large brains and long gestations. Three of the human cluster genes (LGALS13, -14, and -16) were found to be placenta-specific. Homology modeling revealed conserved three-dimensional structures of galectins in the human cluster; however, analyses of 24 newly derived and 69 publicly available sequences in 10 anthropoid species indicate functional diversification by evidence of positive selection and amino acid replacements in carbohydrate-recognition domains. Moreover, we demonstrate altered sugar-binding capacities of 6 recombinant galectins in the cluster. We show that human placenta-specific galectins are predominantly expressed by the syncytiotrophoblast, a primary site of metabolic exchange where, early during pregnancy, the fetus comes in contact with immune cells circulating in maternal blood. Because ex vivo functional assays demonstrate that placenta-specific galectins induce the apoptosis of T lymphocytes, we propose that these galectins reduce the danger of maternal immune attacks on the fetal semiallograft, presumably conferring additional immune tolerance mechanisms and in turn sustaining hemochorial placentation during the long gestation of anthropoid primates.

Indexed as

Maternal-Fetal ExchangeAnimalsCell DeathChromosomes, Human, Pair 19FemaleGalectinsHumansModels, MolecularMolecular Sequence DataMultigene FamilyPhylogenyPregnancyPrimatesT-LymphocytesGalectins

Identifiers

PMID19497882
PMCPMC2689813
OpenAlexW2028983214

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.